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Innovative Hearth Products
DRT63STTYN Power-Vent Direct-Vent Fireplaces
MINIMUM CLEARANCES TO COMBUSTIBLES
Appliance and Vent Clearances
The appliance is approved with zero clearance to combustible materials
on both sides (as detailed in Table 5), with the following exceptions:
• When the unit is installed with one side flush with a wall, the wall on the
other side of the unit must not extend beyond the front edge of the unit.
• In addition, when the unit is recessed, the side walls surrounding the
unit must not extend beyond the front edge of the unit (see Figure 2
on Page 7).
MINIMUM CLEARANCES TO COMBUSTIBLES
Back / Sides
Top Spacers
Floor
Unit Bottom to Ceiling
Vertical Vent Pipe
Horizontal Vent Pipe
SERVICE CLEARANCES
Front
Table 5
3" (77 mm) above any horizontal/inclined vent component.
See Step 1 ("FRAMING") on Page 12 for clearance requirements to
the nailing flanges on each side of the unit and any adjacent screw
heads.
The appliance should be mounted on a fully supported base extending
the full width and depth of the unit. The appliance may be located on
or near conventional construction materials; however, if installed on
combustible materials, such as carpeting, vinyl tile, etc., a metal or wood
barrier covering the entire bottom surface must be used.
Min. Height of Combustible Enclosure
To provide for the lowest possible combustible enclosure (or shelf)
surface, the venting should be routed in a way to minimize obstructions
to the space above the appliance. Do not insulate the space between the
appliance and the area above it (see Figure 7).
Wall Finishes / Surrounds / Mantels
NOTE: Combustible wall finish materials and/or surround materials must
not be allowed to encroach the area defined by the appliance front faces
(black sheet metal). Never allow combustible materials to be positioned
in front of or overlapping the appliance face. See Pages 31 and 32.
Non-combustible materials, such as surrounds and other appliance trim,
may be installed on the appliance front face only if they do NOT cover
any portion of the removable glass panel.
Vertical installation clearances to combustible mantels vary according
to the depth of the mantel. See Figure 8. Mantels constructed of non-
combustible materials may be installed at any height above the appliance
opening.
NOTE: To avoid heat-related finish damage, we recommend the use of
high-temperature paint (rated 175°F or higher) on the underside of the
mantel.
0" (0 mm) Spacers
0" (0 mm)
0" (0 mm)
72" (1829 mm)
1" (26 mm)
Top: 3" (77 mm)
Sides: 1" (26 mm)
Bottom: 1" (26 mm)
3 ft (0.9 m)
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Do NOT insulate space between
appliance and area above it.
Combustible
Enclosure (or Shelf)
Min. 2 ft vertical
vent section
and one 90-degree
elbow required
Min. 91-1/2"
(2324 mm)
Indoor/Outdoor
Min. 90"
Top of
(2287 mm)
Fireplace
Indoor/
Outdoor
2 x 4
Figure 7 - Min. Height of Combustible Enclosure
Mantel Depth
17 (432)
15 (381)
13 (330)
11 (279)
9 (229)
7 (178)
12
(305)
10
Inches
(254)
(millimeters)
Top of Appliance
Figure 8 - Combustible Mantel Clearances
Minimum Distance to Unprotected Side Wall
At 14" minimum
At 8-1/4" side
side wall clearance,
wall clearance,
a combustible
a combustible
wall can project
wall can project
to any length.
12" maximum.
(13 mm)
Gray area
is "safe
zone"
14"
8.25"
(356 mm)
(209 mm)
Figure 9 - Side Wall Clearances
General Information
900358-00, 01/2018
Min. 3"
(77 mm)
Side View
8
4
(203)
(102)
6
2
(152)
(51)
Top View of Fireplace
0.5"
Combustible materials
45°
are allowed in gray "safe
5 in
zone" illustrated here.
(127 mm)
Combustible walls are
shown in black.
Protected wall is shown
12 in
(305 mm)
in white.
Combustible material
17 in
may project beyond
(432 mm)
the side of the fireplace
opening if it is within
Protected wall
the gray "safe zone"
shown in white
illustrated here.
11
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